OPENAI

Two platforms, two philosophies. Here is how Anthropic and OpenAI compare on APIs, SDKs, documentation, pricing, and the actual experience of building with each.

OpenAI's latest flagship model. Major leap in reasoning, coding, and instruction following over GPT-4o. Powers ChatGPT Plus/Pro and the API. Available via API and ChatGPT.

OpenAI's flagship. GPT-4o for general use, o3 for reasoning, Codex for coding. 300M+ weekly users. Tasks, agents, web browsing, DALL-E, code interpreter.

The creators of Ruff and uv are joining OpenAI. Here is what this means for the Python ecosystem, AI tooling, and why OpenAI is investing in developer infrastructure.

Codex runs in a sandbox, reads your TypeScript repo, and submits PRs. Here is how to use it and how it compares to Claude Code.

A developer's comparison of OpenAI and Anthropic ecosystems - models, coding tools, APIs, pricing, and which to choose for different use cases.

State-of-the-art computer use, steerable thinking you can redirect mid-response, and a million tokens of context. GPT 5.4 is OpenAI's most capable model yet.

OpenAI has entered the browser wars with ChatGPT Atlas, a web browser that embeds ChatGPT directly into the browsing experience. This is not a simple sidebar addition or extension - Atlas reimagines ...

OpenAI is turning ChatGPT into a hub. The new Apps feature lets you access external services directly inside conversations.

OpenAI is drawing a line in the sand. GPT-5 Codex is not an API release.

GPT-5 introduces a fundamentally different approach to inference. Instead of forcing developers to manually configure reasoning parameters, the model operates as a unified system with real-time rou...

OpenAI has released its first open-weight models in over five years. GPT-OSS 12B and GPT-OSS 20B are now available under the Apache 2.0 license, marking a significant shift in strategy for the comp...

OpenAI's cloud coding agent. Runs in a sandboxed container, reads your repo, executes tasks, and submits PRs. Uses GPT-5.3 (codex model). Available in ChatGPT.

Lightweight Python framework for multi-agent systems. Agent handoffs, tool use, guardrails, tracing. Successor to the experimental Swarm project.